A young welder in Louisiana nearly died from a rare and deadly form of anthrax, bringing the total number of cases to nine. The 18-year-old was working as an apprentice welder when he developed symptoms, but despite having no underlying health conditions or risk factors, his condition rapidly deteriorated.
His doctors quickly diagnosed him with "welder's anthrax," a condition caused by exposure to the Bacillus cereus group of bacteria, which also includes the species that causes classic anthrax. In this case, the species identified was B. tropicus, a newly recognized species that can carry and produce anthrax toxins.
The young man received treatment with an anthrax antitoxin and a tailored antibiotic regimen, and made a rapid recovery after just 72 hours. However, six of the previous eight cases of welder's anthrax were fatal, highlighting the potential for this infection to be deadly.
Experts are baffled by why metalworkers, particularly welders, are uniquely vulnerable to this infection. They speculate that it may be due to weakened immune responses in the lungs after inhaling toxic metal fumes and gases created during metalwork, as well as increased exposure to the bacteria in the workplace.
Environmental sampling of his workplace found anthrax-toxin-producing Bacillus in 28 out of 254 spot samples, suggesting a high level of risk. The experts also suggest that iron exposure may play a role, as Bacillus bacteria need iron to live and thrive.
The case highlights the importance of better ventilation, respirators, and dust control measures in workplaces where metalwork is taking place. There is currently no vaccine for anthrax recommended for those considered at high risk, including metalworkers, although one exists for certain military members, lab workers, and livestock handlers.
His doctors quickly diagnosed him with "welder's anthrax," a condition caused by exposure to the Bacillus cereus group of bacteria, which also includes the species that causes classic anthrax. In this case, the species identified was B. tropicus, a newly recognized species that can carry and produce anthrax toxins.
The young man received treatment with an anthrax antitoxin and a tailored antibiotic regimen, and made a rapid recovery after just 72 hours. However, six of the previous eight cases of welder's anthrax were fatal, highlighting the potential for this infection to be deadly.
Experts are baffled by why metalworkers, particularly welders, are uniquely vulnerable to this infection. They speculate that it may be due to weakened immune responses in the lungs after inhaling toxic metal fumes and gases created during metalwork, as well as increased exposure to the bacteria in the workplace.
Environmental sampling of his workplace found anthrax-toxin-producing Bacillus in 28 out of 254 spot samples, suggesting a high level of risk. The experts also suggest that iron exposure may play a role, as Bacillus bacteria need iron to live and thrive.
The case highlights the importance of better ventilation, respirators, and dust control measures in workplaces where metalwork is taking place. There is currently no vaccine for anthrax recommended for those considered at high risk, including metalworkers, although one exists for certain military members, lab workers, and livestock handlers.